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Mercedes-Benz engines with 48-volt systems coming in 2017

As part of a big green push announced yesterday, Mercedes-Benz is jumping into the world of 48-volt power. The company will launch a new family of efficient gasoline engines next year and will begin rolling out 48-volt systems with it, likely in its more expensive cars first. Mercedes will use the 48-volt systems to power mild-hybrid functions like energy recuperation (commonly called brake regeneration), engine stop-start, electric boost, and even moving a car from a stop on electric power alone. These features will be enabled through either an integrated starter-generator (Mercedes abbreviates it ISG) or a belt-driven generator (RSG). (RSG is from the German word for belt-driven generator, Riemenstartergeneratoren. That's your language lesson for the day.) Mercedes didn't offer many other details on the new family of engines. There are 48-volt systems already in production; Audi's three-compressor SQ7 engine uses an electric supercharger run by a 48-volt system, and there's a new SQ5 diesel on the horizon that will use a similar setup with the medium-voltage system. Electric superchargers require a lot of juice, which can be fed by either a supercapacitor or batteries in a 48-volt system. Why 48-volt Matters: Current hybrid and battery-electric vehicles make use of very high voltages in their batteries, motors, and the wiring that connects them, usually around 200 to 600 volts. The high voltage gives them enough power to move a big vehicle, but it also creates safety issues. The way to mitigate those safety issues is with added equipment, and that increases both cost and weight. You can see where this is going. By switching to a 48-volt system, the high-voltage issues go away and the electrical architecture benefits from four times the voltage of a normal vehicle system and uses the same current, providing four times the power. The electrical architecture will cost more than a 12-volt system but less than the complex and more dangerous systems in current electrified vehicles. The added cost makes sense now because automakers are running out of ways to wisely spend money for efficiency gains. Cars can retain a cheaper 12-volt battery for lower-power accessories and run the high-draw systems on the 48-volt circuit. The industry is moving toward 48-volt power, with the SAE working on a standard for the systems and Delphi claiming a 10-percent increase in fuel economy for cars that make the switch.

F1 cancels season-opening Australian Grand Prix over coronavirus

Workers pack up in pit lane after the cancellation of the Australian Formula One Grand Prix in Melbourne, Friday. / AP   MELBOURNE, Australia — As thousands of fans queued to get into the Australian Grand Prix, seemingly unperturbed by the coronavirus pandemic, the Formula One teams and drivers were packing up to leave. The rapid spread of the virus left organizers with little choice Friday but to cancel the season-opening race, particularly after McLaren withdrew because a team member tested positive for the COVID-19 illness and following heavy criticism from six-time world champion Lewis Hamilton. The two practice sessions that usually showcase what the teams have been improving in the off-season were less than two hours from starting when the decision was publicly announced. Principals of nine F1 teams and organizers met overnight and “concluded with a majority view of the teams that the race should not go ahead," a joint statement by FIA, motorsport's governing body, local organizers and F1 said. “It's been a very fluid situation," F1 chairman Chase Carey said. “We're all disappointed not to have it, but I think we've made the decision we had to make." “It's not like it came out of the blue," Carey told a news conference beside the F1 paddock that ended in light rain. “A week ago, when teams started traveling here, we felt it was the right decision (to stage the race). Clearly the situation changed in the interim." Practice, qualifying and Sunday's race were all scrapped, casting doubt over the Bahrain Grand Prix which is scheduled to be held next week and the Vietnamese GP, scheduled for April 5. Authorities in Bahrain have already said no fans will be allowed into the circuit. Carey said a decision on whether or not to go ahead with the the race would be made in coming days. The Chinese GP has already been postponed from April. Hamilton used the first official news conference with F1 drivers in Melbourne to say he was shocked that organizers planned to proceed with the Australian Grand Prix, which regularly attracts more than 300,000 people over four days. McLaren's decision to withdraw was ultimately the catalyst for the cancellation. That person and 14 other McLaren team members have been placed in quarantine in a Melbourne hotel for 14 days. Hamilton's Mercedes-AMG Petronas team said it sent a letter to the FIA and F1 requesting the cancellation and had commenced preparations to leave before the decision was publicly announced.

Monterey Car Week recap, 2025 Lincoln Navigator and more | Autoblog Podcast #845

In this episode of the Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Editor Jeremy Korzeniewski. They look back on Monterey Car Week, and pick their favorite highlights from the event, including the new Lincoln Navigator, the Ruf Rodeo, Cadillac Opulent Velocity concept and more. In the news, Ford has abandoned its three-row EV in a pivot to hybrid. Our hosts review recent cars in the fleet, like the Mercedes GLC Coupe, long-term Mazda CX-90 and the three-wheel Can-Am Ryker. They also compare the Jeep Gladiator with the Wrangler. Send us your questions for the Mailbag and Spend My Money at: Podcast@Autoblog.com. Autoblog Podcast #845 Get The Podcast Apple Podcasts – Subscribe to the Autoblog Podcast in iTunes Spotify – Subscribe to the Autoblog Podcast on Spotify RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Monterey Car Week recap 2025 Lincoln Navigator Ruf Rodeo Cadillac Opulent Velocity concept Lamborghini Temerario Porsche 911 Turbo 50 Years Ford-Ghia Probe I prototype burns to a crisp Ford cancels electric three-row SUV, pivots to hybrid Cars we're driving 2024 Mercedes-Benz GLC 300 Coupe 2024 Mazda CX-90 PHEV long-term update 2025 Can-Am Ryker 2024 Jeep Gladiator vs. Wrangler Feedback Email – Podcast@Autoblog.com Review the show on Apple Podcasts Autoblog is now live on your smart speakers and voice assistants with the audio Autoblog Daily Digest. Say “Hey Google, play the news from Autoblog” or "Alexa, open Autoblog" to get your favorite car website in audio form every day. A narrator will take you through the biggest stories or break down one of our comprehensive test drives. Related Video:  Corvette ZR1, Honda Civic Type R and Mercedes-AMG SL 63 | Autoblog Podcast 843 This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.